股骨腫瘤切除術(shù)中的定制型假體有限元分析.pdf

1、山東大學(xué)碩士學(xué)位論文股骨腫瘤切除術(shù)中的定制型假體有限元分析姓名：劉凱紅申請學(xué)位級別：碩士專業(yè)：材料加工工程指導(dǎo)教師：黃曉慧20080501ABSTRACTFiniteElementAnalysisofCustomProsthesisforFemurTumourTreatmentABSTRACTFemurisoneofthemostcommonlocationsofmetastaticormyelomalytielesionsThecom

2、pletetumourresectionnamelyedgeresectioncanbegivenforsurgicaltreatment，andthiscauseslargebonelostCustom—prosthesisofhipjointreplacementisoneofthekeymethodstepairthebonelostandreconstructionthelimbfunction，butitCanalsolead

3、totheprosthesisbreakingandloosingwhichduetothestressshieldinginthelongtermWiththedevelopmentofcomputerthefiniteelementmethod(FEM)andcomputergraphics，thecomputeraidedengineeringtechnologybasedonnumericalsimulationareincre

4、asinglyemployedinmedicinefieldAsFEMhasadvantagesonanalyzingthemechanicalpropertyofanomalousobjects，itisextendingappliedinhumanbones，especiallyinthebiologicalmechanicsofthehipjointreplacementandtheoptimizationofnewprosthe

5、sisdesignInthisstudywithconstructedthreedimensionalfemurthreecasesofthelengthofbonesectioncorrespondingwitlldifferentlengthoflimbstemaledeterminedandanalyzedforthestressdistributiononbone，cementandprosthesisrespectivelyT

6、heresultsofsimulationwillgivesurgeonsusefulsuggestionsabouttheschemeofoperationTheFEAresultsshow：themaxstressofprosthesisstemOCCurSataboutoneofthreelengthsfarawaybottomstem，lessthanthelimitStressonmedialandlateralfemuris

7、obviouslyhigherthanoneonanteriorandposteriorfemuranddisplaystobeincreasinggraduallyfromtoptobottomThemaxmagnitudeoccursatthebottomoflimbstemSimultaneouslyproximalmedialcementandbottomlateralcementgothigherstressmagnitude